--- parser3/src/include/Attic/pa_value.h 2001/02/25 16:08:25 1.32.2.1 +++ parser3/src/include/Attic/pa_value.h 2001/03/08 13:13:39 1.44 @@ -1,5 +1,5 @@ /* - $Id: pa_value.h,v 1.32.2.1 2001/02/25 16:08:25 paf Exp $ + $Id: pa_value.h,v 1.44 2001/03/08 13:13:39 paf Exp $ */ /* @@ -12,45 +12,43 @@ #include "pa_pool.h" #include "pa_string.h" #include "pa_array.h" -//#include "pa_voperator.h" #define NAME_NAME "NAME" class Value; class VClass; -//class VOperator; class Junction; class WContext; +class VAliased; +class Request; + +typedef void (*Native_code_ptr)(Request& request, Array& params); class Method : public Pooled { public: const String& name; - Array& params_names; - Array& locals_names; - const Array& code; + // either numbered params // for native-code methods = operators + int numbered_params_count; + // or named params&locals // for parser-code methods + Array *params_names; Array *locals_names; + // the Code + const Array *parser_code;/*OR*/Native_code_ptr native_code; Method( Pool& apool, const String& aname, - Array& aparams_names, - Array& alocals_names, - const Array& acode) : + int anumbered_params_count, + Array *aparams_names, Array *alocals_names, + const Array *aparser_code, Native_code_ptr anative_code) : Pooled(apool), name(aname), - params_names(aparams_names), - locals_names(alocals_names), - code(acode) { + numbered_params_count(anumbered_params_count), + params_names(aparams_names), locals_names(alocals_names), + parser_code(aparser_code), native_code(anative_code) { } }; -/* -class Operator : public Method { - // operator module static vars stored in there - VOperator_class *self; -}; -*/ - class Junction : public Pooled { public: @@ -70,8 +68,11 @@ public: code(acode) { } + // always present Value& self; + // either these // so called 'method-junction' VClass *vclass; Method *method; + // or these are present // so called 'code-junction' Value *root; Value *rcontext; WContext *wcontext; @@ -83,15 +84,31 @@ public: // Value // all: for error reporting after fail(), etc virtual const char *type() const =0; - /*const*/ String& name() const { return *fname; } + String& name() const { return *fname; } + + // unknown: false + // others: true + virtual bool get_defined() { return true; } // string: value // unknown: "" + // double: value // others: 0 virtual String *get_string() { return 0; } // string: value - virtual void put_string(String *astring) { failed("storing string to '%s'"); } + // double: value + // bool: value + virtual double get_double() { failed("getting numerical value of '%s'"); return 0; } + + // unknown: false + // bool: value + // double: 0 or !0 + // string: empty or not + // hash: size!=0 + // TODO table: count!=0 + // others: true + virtual bool get_bool() { return true; } // junction: auto_calc,root,self,rcontext,wcontext, code virtual Junction *get_junction() { return 0; } @@ -115,6 +132,11 @@ public: // Value // wcontext: none yet | transparent virtual VClass *get_class() { return 0; } + // valiased: this + // wcontext: transparent + // methodframe: self_transparent + virtual VAliased *get_aliased() { return 0; } + public: // usage Value(Pool& apool) : Pooled(apool), fname(new(apool) String(apool)) { @@ -139,16 +161,4 @@ private: void failed(char *action); }; -/* -descendants: - text:+ value:String - hash:+ keys&values:Hash - table:+ columns_order:Array, columns:Hash, rows:Array - object_class:+ STATIC:Hash, methods:Hash - object_instance:+ object_class, fields:Hash - method_ref:+ self:Value/object_class, method:String - method_self_n_params_n_locals:+ self:Value/object_class[1st try], params_locals&values:Hash[2nd try] - junction:+ self:Value, code:String -*/ - #endif